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horsena [70]
3 years ago
8

If you’re good with permutations in math 30 please help and answer this easy question below real answers only

Mathematics
1 answer:
Len [333]3 years ago
6 0

Answer:  d) 2730

<u>Step-by-step explanation:</u>

1st movie     and        2nd movie             and        3rd movie

15 videos       ×     14 remaining videos     ×     13 remaining videos = 2730

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The gas law for an ideal gas at absolute temperature T (in kelvins), pressure P (in atmospheres), and volume V (in liters) is PV
JulijaS [17]

Answer:

\frac{dT}{dt}=3.78^{\circ}K/min

Step-by-step explanation:

We have to calculate the time derivative of T=PV/nR with P and V variable and n and R constants. This is:

\frac{dT}{dt} =\frac{d\frac{PV}{nR}}{dt}=\frac{1}{nR}\frac{d(PV)}{dt}

What we have to do is the derivative of a product:

\frac{d(PV)}{dt}=P\frac{dV}{dt}+V\frac{dP}{dt}

Substituting, we have:

\frac{dT}{dt} =\frac{P\frac{dV}{dt}+V\frac{dP}{dt}}{nR}

where all these values are given since the time derivatives of P and V are their variation rate, using minutes.

We then substitute everything, noticing that already everything is in the same system of units so they cancel out:

\frac{dT}{dt}=\frac{P\frac{dV}{dt}+V\frac{dP}{dt}}{nR}=\frac{(8atm)(0.16L/min)+(13L)(0.14atm/min)}{(10mol)(0.0821Latm/mol^{\circ}K)}

And then just calculate:

\frac{dT}{dt}=3.78^{\circ}K/min

6 0
3 years ago
3. Carl is swimming 6 feet UNDER the water and Candice is standing on a dock 10
DochEvi [55]

Answer:

16

Step-by-step explanation:

1. Use a vertical number line to count how many spaces are between -6 and 10.

5 0
4 years ago
Read 2 more answers
Cheri walked 12 blocks in 36 minutes. What was Cheri's speed per minute?
Rina8888 [55]
Cherish walled 3 blocks in 1 minute.
I know this because 36+÷12=3.
Which three represents the number of blocks walked in one minute.
8 0
3 years ago
3x+11 divided by 2+-2
mezya [45]

Answer:

Impossible.

Step-by-step explanation:

You cannot divide by a 0.

6 0
3 years ago
Read 2 more answers
-6 (p + 8) = -35 + 7p
Novosadov [1.4K]

Answer:

p = −1

Step-by-step explanation:

1. Regroup terms.

−6 (p + 8) = 7p − 35

2. Expand.

−6p − 48 = 7p − 35

3. Add 6p to both sides.

−48 = 7p − 35 + 6p

4. Simplify 7p − 35 + 6p to 13p −35.

−48 = 13p − 35

5. Add 35 to both sides.

−48 + 35 = 13p

6. Simplify −48 + 35 to −13.

−13 = 13p

7. Divide both sides by 13.

−1 = p

8. Switch sides.

p = −1

3 0
3 years ago
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